Most children with H.pylori gastritis suffered from recurrent abdominal pain (RAP) that disrupted their activities. RAP has become 10 ? 20% cause of non-attendance at school and disrupted leaning process in children resulted in lower learning achievement level. This research aims to assess learning achievement level in children with H. pylori gastritis. It was an observational analytical study with a cross-sectional approach in Gastroenterology Polyclinic Haji Adam Malik general hospital, Universitas Sumatera Utara hospital, and the network hospitals from October 2019 to July 2020. Research subjects who met the inclusion and exclusion criteria underwent physical examination, and gastroscopy and CLO tests. Interviews were carried out to obtain basic characteristic data that was relevant to children?s learning achievement level. Fisher?s exact statistical test and multivariate analysis were carried out to assess learning achievement level in children with H. pylori gastritis. There was a significant relationship (p=0.015) between H. pylori gastritis and learning achievement level with OR value 5.992 (95% CI: 1.307 ? 26.837).